unimore/kernel-hacking-2024-linux-steffo
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btrfs: send: annotate struct name_cache_entry with __counted_by()

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Add the __counted_by compiler attribute to the flexible array member
name to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Thorsten Blum 2024-08-13 12:53:15 +02:00 committed by David Sterba
parent 6252690f7e
commit c0247d289e
1 changed files with 1 additions and 1 deletions
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fs/btrfs/send.c
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@ -347,7 +347,7 @@ struct name_cache_entry {
int ret;
int need_later_update;
int name_len;
char name[];
char name[] __counted_by(name_len);
};
/* See the comment at lru_cache.h about struct btrfs_lru_cache_entry. */